Synthesis and characterization of novel cellulose-based superabsorbent resin using waste flax yarns

In order to solve the problems of further treatment and environmental pollution caused by waste flax in the flax sector,waste flax yarns were grafted with acrylic acid monomers to synthesize a novel cellulose-based superabsorbent resin by heterogeneous polymerization process. The synthesis process was optimized and the resultant resin was characterized. The optimal synthesis conditions obtained were: the mass fractions of acrylic acid,initiator ammonium persulfate,N,N'-methyleneacrylamide were 500%,19%,4%,respectively,on weight of cellulose,reacting at 70 ℃ for 3 hours.The water absorbencies of the superabsorbent resin in deionized water,tap water and 0. 9% NaCl aqueous solution were 658,382 and 65,respectively. It also maintained excellent water retention capacity both at room temperature and in the oven with different temperatures.